You might give them a picture with that as well, so there’s the maximum chance they’ll understand. To me this looks like an average speed of M1.1 over the maximum range.
I guess confirmation bias is such a strong phenomenon that it makes people lose the ability to read and understand plain English.
@Armen_Lozone
This doesn’t seem to be case though. Check the colors in the rectangle I drawn, it appears that the colors are pretty much unified until the smaller metallic ring is reached right around the seeker.
Even in this low quality picture, that smaller metallic ring is sticking out as a sore thumb, while the bigger ring which is made out of the same material can’t be seen at all.
Only thing that sticks out pretty clearly is the smaller ring. You can look at the bottom half of the missile where there’s much less sunlight present, and all you can see is the small ring followed by something with clearly different color.
I mean you can say that but nothing can remove the blatantly different colours between the whole seeker head and the body.
Some small area may slightly match but even that is a different colour if you look closely
I don’t think it’s that fast, don’t forget that drag is proportional to velocity squared (let alone when supersonic), and since the motor won’t be burning for the entire duration it’s going to be coasting the majority of that distance and as such that would means that the peak speed would have to be even higher for it to have an average speed of Mach 1.1.
bro it doesnt matter that the rectangle seems similar in color because the rest of the majority of the color abruptly changes at the seekerhead - missile body boundary